Home / 3,939.54-5,909.31-1,747.68

Finding the Fourth Proportional to 3,939.54, 5,909.31 and 1,747.68

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Solution

The fourth proportional to 3,939.54, 5,909.31 and 1,747.68 is: 2,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,939.54 : 5,909.31 = 1,747.68 : x
  2. Step 2: Convert to fraction form
    3,939.54/5,909.31 = 1,747.68/x
  3. Step 3: Cross multiply
    3,939.54x = 5,909.31 × 1,747.68
  4. Step 4: Simplify right side
    3,939.54x = 10,327,582.90
  5. Step 5: Solve for x
    x = 10,327,582.90/3,939.54
  6. Step 6: Final answer
    x = 2,621.52

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.